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Soy milk, unsweetened — Cups to Grams

One US cup of unsweetened soy milk weighs about 243 grams. That makes it heavier than all-purpose flour, which is 120 grams per cup. Shake well before measuring; soy milk separates on standing. Use the converter below to switch unsweetened soy milk between cups, grams, ounces, tablespoons and millilitres — or read the full chart underneath.

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Unsweetened soy milk conversion chart

Unsweetened soy milk — cups to grams chart
Cups	Grams	Ounces	Tablespoons	Millilitres
⅛ cup	30.38 g	1.07 oz	2	29.57 ml
¼ cup	60.75 g	2.14 oz	4	59.15 ml
⅓ cup	81 g	2.86 oz	5.33	78.86 ml
½ cup	121.5 g	4.29 oz	8	118.3 ml
⅔ cup	162 g	5.71 oz	10.67	157.7 ml
¾ cup	182.3 g	6.43 oz	12	177.4 ml
1 cup	243 g	8.57 oz	16	236.6 ml
1¼ cups	303.8 g	10.71 oz	20	295.7 ml
1½ cups	364.5 g	12.86 oz	24	354.9 ml
2 cups	486 g	17.14 oz	32	473.2 ml
3 cups	729 g	25.71 oz	48	709.8 ml

Grams to cups: unsweetened soy milk

Unsweetened soy milk — grams to cups chart
Grams	Cups	Ounces	Tablespoons
10 g	0.041	0.353 oz	0.658
25 g	0.103	0.882 oz	1.65
50 g	0.206	1.76 oz	3.29
75 g	0.309	2.65 oz	4.94
100 g	0.412	3.53 oz	6.58
125 g	0.514	4.41 oz	8.23
150 g	0.617	5.29 oz	9.88
200 g	0.823	7.05 oz	13.17
250 g	1.03	8.82 oz	16.46
300 g	1.23	10.58 oz	19.75
400 g	1.65	14.11 oz	26.34
500 g	2.06	17.64 oz	32.92

How to measure unsweetened soy milk

Shake well before measuring; soy milk separates on standing.

Because a cup measures volume rather than weight, the most reliable way to measure unsweetened soy milk is with a digital kitchen scale. If you are working from cups, keep your technique consistent every time so your results are repeatable. For more, see our guide on baking by weight versus volume.

No scale yet? You don't need a fancy one; any digital kitchen scale that reads in 1-gram steps does everything on this site. Well-rated kitchen scales on Amazon →

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Substitutes for unsweetened soy milk

1 cup soy milk = 1 cup whole dairy milk (King Arthur Baking)
Best plant-milk match for dairy in baking; matches dairy on protein (~7–8 g/cup).
1 cup soy milk = 1 cup oat or almond milk (King Arthur Baking)
Works for quick breads, muffins, and cakes; performs best in yeast breads among plant milks.

See all unsweetened soy milk substitutes, ratios and sources →

Compare unsweetened soy milk

Milk vs Soy milk, unsweetened

Unsweetened soy milk conversions: FAQ

Why doesn't a cup of unsweetened soy milk weigh the same as a cup of water?

A cup measures volume, not weight. Unsweetened soy milk is denser than water (243 g versus 237 g per cup), so the same volume has a different weight. Weighing in grams is the most accurate way to measure it.

Common unsweetened soy milk conversions

Quick-answer pages for the conversions people search for most.

100 g to cups

100 g unsweetened soy milk ≈ 0.412 cups

200 g to cups

200 g unsweetened soy milk ≈ 0.823 cups

250 g to cups

250 g unsweetened soy milk ≈ 1.03 cups

500 g to cups

500 g unsweetened soy milk ≈ 2.06 cups

¼ cup to grams

¼ cup unsweetened soy milk ≈ 60.75 g

½ cup to grams

½ cup unsweetened soy milk ≈ 121.5 g

1 cup to grams

1 cup unsweetened soy milk ≈ 243 g

2 cups to grams

2 cups unsweetened soy milk ≈ 486 g

Related converters

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* Conversion figures are typical average weights for one US customary cup (236.6 ml), based on the King Arthur Baking Ingredient Weight Chart and cross-referenced with the U.S. Department of Agriculture FoodData Central database. Actual weight varies with packing, brand and humidity — see our methodology.